Ossicular prosthetic with variable coupling surfaces

摘要

The prosthesis (10) has a plate-shaped fastening unit (11) attached to an eardrum or to a stapes base plate, and another fastening unit (12) connected with parts of a limb of an ossicular chain. A connection unit (13) connects the fastening units with one another in a sound-conducting manner, and bar units (15, 15') radially connects a radial inner coupling area (14) with radial outer sections (16, 16') of the unit (11). The area and/or bar units and/or radial sections form common parts of puzzle, where the unit (11) is mechanically stable in an assembled condition of the puzzle-parts.